Apparatus fob



H. B. KIPPER.

APPARATUS FUR PRODUCING CYANIDS FROM NITROGEN 0H AIR.

APPLICATlON FILED FEB-19,1918.

HERMAN B. KIPPER, or. MUsKneon, momenti.

PIJARATUS FOR PRODUCIG CYANIDS FROM NITROGEN 0R AMER.

bananen'.

speeineation of Letters Patent.

lll'atentcd Nov.. l0, fait.

application filed February 19, 1918. y Serial No. 218,063.

.To all 'whom it may concern.'-

Be it `known that I, HERMAN B. KIPPER, a citizen of the United States ofAmerica, residing at Muskegon, in the county of Muskegon and State ofMichigan, have invented certain new and useful Improvements in.ftpparatus for Producing Cyanide from liltrogen or Air, of which thefollowing is a specification.

lhe present invention relates to improvements in apparatus for producingcyanids and analogous compounds from nitrogen or air, and is based onthe principle that if nitrogen or air is passed over sodium carbonate,carbon and iron at a temperature of abeut 000 to 10000 centigrade,nitrogen will be absorbed and cyanids.or similar compounds produced.

To commercially utilize this Well known riniction many attempts havebeen made during the past thirty years to produce an aymaratus for thisynnfpose, Which, however, have not been successful.

.ln the accompanying drawing Which forms part of this specification, andin which similar reference characters denote corresponding parts, Figurel is a more or less diagranunatic sectional View of the apparatus; Fig.2 a cross section on line 2-2 of lfig. l; Fig. 3 a cross section on line3--3 of Fig. l and Figa an enlarged sectional View of the feeding end ofthe rotary reacting cylinder.

ln the drawing A denotes a producer or furnace which is fed with coke,preferably 4'iwtroleun1 coke or other ashless fuel, through' a hopper orcharge opening B. From one side of this furnace leades a cylinderl orpipe into a suitably mounted revolving steel. cylinder E. rlhis cylinderE is lined with an outer layer c of insulating bricks and a second orinner layer c2 of re. ractory lining buch as magnesia or soapstone,which will withstand the action of fused alkaline caraies. Thetempt-rature in the cylinder adapted to be maintained above 0000 Vnde. Fa .feed pipe arranged at a s leading tln'ough the pipe l) into n end ofthe revolving cylinder E, t said pipe. Il and l are regenerv slows olnell known construction, cach l .l into a Xiilurality of longitudinal :1fifa/10. il which. communicate with each -r u lfffrnatcrv at theiropposite ends'. v"The winters fl. l are provided with blowfans it", iand discharge passages H2.

I2 leading to the chimney (not shown).

These regenerators are connected at one end by pipes vz', i havingvalves 2 to a pipe 7' leading into the bottom of the furnace A and atthe opposite end by pipes la, 7c to a cylinder or pipe L, whichcommunicates with the open end of the revolving cylinder E opposite thefeed F. The pipes it', 7c also communicate with a pipe Z leading intoanother revolving cylinder K having also a slanting feed K and whichserves as a preheater. The opposite end of the preheater communicatesthrough a pipe m with the feed F. The cylinder or pipe L is formed atits bottom with aspiral feed M of usual construction. N denotesa pipefor the admission of nitrogen gas. Any suitable means for operating thecylinders E and K may be employed,

such as wheels or the like.

The mode of operation of this apparatus is as follows:

The finely divided reacting material, such as sodium carbonate, carbonand iron,v is introduced first into cylinder K by pipe le and passingthrough the cylinder is preheated to a temperature of 400 to 6000.rllhis preheated material is then fed through suitable means such as aspiral or other conveyer into the connecting slanting pipe F throughwhich it slides down by its own gravity. The

furnace A receives `a certain amount of ashless fuel such as petroleumcoke or the like. Since preheated air is fed into the fuel bed containedin furnace A, the temperature developed may be made very readily toexceed 10000 C., and by regulation of the temperature of the preheatedair the reacting temperature derived may readily be established andmaintained in cylinder E. It is necessary to use an ashless fuel infurnace A since any fuel containing ash will give so bad a clinker as torender furnace A inoperative.

After completion of the reaction in cylinder E, the cyanids andanalogous compounds formed together with any material not acted uponwill leave the cylinder through the opening leading from the latter intothe pipe li, by itself, when the cylinder is entirely filled or througha suitable conveyer such as a spiral or the like which m ay be arrangedwithin said opening or passage; and fall down onto the conveyer M.lilitrogen gas will be fed 'through pipe lil into "the cylinder L inorder to surround the If cyanide und analogous con'lpounds with an.atmosphere of nitrogen during cooling.

lart of thc producer' gas leaving the cylinder E flows through cylinderL to pipe Z and thence to the ireheater cylinder K and another part oftlie producer gas leaving the cylinder E is fed through the pipes k, tothe regenerators H and I. Vliile the producer gas flowing from thereacting cylinder l mixed with air is being fed through regenerator H,the fan I xblows air through regenerator I and into furnace A;Subsequently when regenerator I has become sufficiently cool, producergas and air are fed through it and passed through discharge I2 to theWaste-,heat stack, while regenerator H is used for preheating the air tobe fed to furnace A. As mentioned,

v-a portion of the producer gas leaving E is used for preheating thereacting materials in cylinder K and the gases burned in the latter areled to the waste heat stack through m.

lT he construction shown is of course only one embodiment of myinvention. It is understood that the apparatus may be modified invarious Ways Without departing from the principle of my invention, and Itherefore do not wish to restrict myself to theV details shown anddescribed.

What I claim and desire to secure by Letters Patent is:

l. An apparatus for producing cyanide or the like, consisting of arevolving cylinder for the reacting material, -a fuel furnace directlyconnected with said cylinder, a' preheate-r having a feed leading intothe same and a feed leading from the same into said cylinder andregenerators connunicating each at one end with said furnace and at theopposite end with said cylinder and the preheater. i

2. An apparatus for producing cyanids or the like, consisting of arevolving cylinder for the reacting material, an -ashless fuel furnacedirectly connected with said cylinder, a revolving preheating cylinderhaving a feed leading into said cylinder and a feed leading from saidcylinder into said first named cylinder, and regenerator stoves eachhaving longitudinal flues alternately communicating with one another,said lstoves communicating cach at one end with said furnace and at theopposite end with said first named cylinder and the said preheatingcylinder.

3. An apparatus for producing cyanids or the like, consisting of arevolving cylindcr for the reacting material, an ashless fuel furnacedirectly connected with said cylinder, a prcheater having a feed leadinginto the same and a feed leading from the same into said cylinder, andregenerator stoves each having lines alternately comnmnicating with oneanother, said stoves communieating each at one end with said furnace andat the opposite end with said cylinder and the said preheater.

4. An apparatus for producing cyanids or the` like, consisting of arevolving cylinder for the reacting material, a fuel furnace directlyconnected with said cylinder, a. preheater having a feed leading intothe same and a feed leading from the same into said cylinder, andrcgencrator stoves each having flnes communicating with one another,said stoves communicating each at one end with said furnace and at theopposite end with said cylinder and the said preheater.

5. An apparatus for producing cyanids or the like, consisting of arevolving cylinder for the reacting material, a fuel furnace directlyconnected with said cylinder, a revolving preheater having a feedleading into the same and a feed leading from the same into saidcylinder and rcgenerator stoves each having fines communicating with oneanother, said stoves communicating each at one end with said furnace andat the opposite end with said cylinder and the said preheater. l

In testimony whereof I ailix my signature in pre-sence of two witnesses.

- HERMAN B. KIPPER. lVitiiesses 1 IVALLACE Foorn, GRACE VANDERZYL.

